Adaptive bit-rate methods for live broadcasting
US11019368B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 26, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Apr 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8456
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The following describes techniques to maintain continuity of a live media stream. A media stream may include a first distribution layer at a first bit-rate with at least one key frame at a first time relative to a time domain and a set of delta frames succeeding the first key frame. The media stream may also include a second distribution layer including at least one key frame at a second time that is shifted in time relative to the first time. A device may subscribe to the media stream with a minimized start-up time and optimized quality of experience among varying complexity of the media content and dynamic network conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.